Pretty much on lvl 3, the whole party runs to the boss, the dude with the slow ward stays back and lays it down and strafes the foes while the party kills the boss. With the ward, all agro breaks goes to the player with the ward, so strafe do avoid dmg, and wait till the boss dies and run to the boss shrine. That pic is our first try, and @ 3 min we were impressed with only 7 players.
Not too hard. IMO.
Crit agility for the extra armor cuz some of the baddies will follow you. Currently incorporating Calculated Risk and Pain Inverter into the bars.